Thortveitite

Formula: (Sc,Y)₂Si₂O₇Mohs scale hardness: 5-6Specific gravity: 3.3-3.8Rare earth elements: Sc, YRare earth content, %: 18 % Y₂O₃ , 25 % Sc₂O₃ Other constituents, %: 12 % Re₂O_{3 ,} ZrO_{2 ,} HfO₂Mineralklasse: Silicate (Sorosilicate)Area of application: Thortveitite is primary minerals of scandium.Distribution: Norway, Madagascar, Japan, Rusia (Ural), USA (Montana), Sweden, Italy, France, Canada, China, Kazakhstan and others.During the processing of Thortveitite, plants use the following types of separation:Special methods of separation